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551 lines
15 KiB
551 lines
15 KiB
/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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CmBattp.h
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Abstract:
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Control Method Battery Miniport Driver
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Author:
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Ron Mosgrove (Intel)
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Environment:
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Kernel mode
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Revision History:
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--*/
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#ifndef FAR
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#define FAR
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#endif
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#include <wdm.h>
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#include <wmilib.h>
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#include <batclass.h>
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#include <devioctl.h>
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#include <acpiioct.h>
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#define DIRECT_ACCESS DBG
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#if DIRECT_ACCESS
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#define CMB_DIRECT_IOCTL_ONLY 1
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#include "cmbdrect.h"
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#endif
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//
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// Debug
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//
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#define DEBUG DBG
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#if DEBUG
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extern ULONG CmBattDebug;
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#define CmBattPrint(l,m) if(l & CmBattDebug) DbgPrint m
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#else
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#define CmBattPrint(l,m)
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#endif
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#define CMBATT_LOW 0x00000001
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#define CMBATT_NOTE 0x00000002
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#define CMBATT_WARN 0x00000004
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#define CMBATT_ERROR_ONLY 0x00000008
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#define CMBATT_ERROR (CMBATT_ERROR_ONLY | CMBATT_WARN)
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#define CMBATT_POWER 0x00000010
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#define CMBATT_PNP 0x00000020
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#define CMBATT_CM_EXE 0x00000040
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#define CMBATT_DATA 0x00000100
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#define CMBATT_TRACE 0x00000200
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#define CMBATT_BIOS 0x00000400 // Show message to verify BIOS/HW functionality
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#define CMBATT_MINI 0x00000800 // Show message to verify miniport retun data
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extern UNICODE_STRING GlobalRegistryPath;
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extern PDEVICE_OBJECT AcAdapterPdo;
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extern KDPC CmBattWakeDpcObject;
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extern KTIMER CmBattWakeDpcTimerObject;
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//
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// Delay before notifications on wake = 0 seconds * 10,000,000 (100-ns/s)
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//
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#define WAKE_DPC_DELAY {0,0}
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//
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// Delay on switch to DC before showing estimated time.
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// 15 seconds * 10,000,000 (100-ns/s)
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//
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#define CM_ESTIMATED_TIME_DELAY 150000000
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extern LARGE_INTEGER CmBattWakeDpcDelay;
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#define MAX_DEVICE_NAME_LENGTH 100
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//
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// WaitWake registry key
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//
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extern PCWSTR WaitWakeEnableKey;
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//
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// Host Controller Device object extenstion
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//
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#define CM_MAX_DATA_SIZE 64
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#define CM_MAX_STRING_LENGTH 256
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//
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// Control Methods defined for the Control Method Batteries
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//
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#define CM_BIF_METHOD (ULONG) ('FIB_')
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#define CM_BST_METHOD (ULONG) ('TSB_')
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#define CM_BTP_METHOD (ULONG) ('PTB_')
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#define CM_PCL_METHOD (ULONG) ('LCP_')
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#define CM_PSR_METHOD (ULONG) ('RSP_')
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#define CM_STA_METHOD (ULONG) ('ATS_')
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#define CM_UID_METHOD (ULONG) ('DIU_')
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#define CM_OP_TYPE_READ 0
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#define CM_OP_TYPE_WRITE 1
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#define NUMBER_OF_BIF_ELEMENTS 13
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#define NUMBER_OF_BST_ELEMENTS 4
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//
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// Value to send to _BTP to clear the trip point.
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//
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#define CM_BATT_CLEAR_TRIP_POINT 0x00000000
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//
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// Special values retuned from control methods.
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//
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#define CM_UNKNOWN_VALUE 0xffffffff
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#define CM_MAX_VALUE 0x7fffffff
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//
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// STA control method return values
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//
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#define STA_DEVICE_PRESENT 0x10
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#define STA_DEVICE_FUNCTIONAL 0x80
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//
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// Control method battery device notification values
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//
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#define BATTERY_DEVICE_CHECK 0x00
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#define BATTERY_EJECT 0x01
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#define BATTERY_STATUS_CHANGE 0x80
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#define BATTERY_INFO_CHANGE 0x81
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//
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// This is the static data defined by the ACPI spec for the control method battery
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// It is returned by the _BIF control method
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//
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typedef struct {
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ULONG PowerUnit; // units used by interface 0:mWh or 1:mAh
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ULONG DesignCapacity; // Nominal capacity of a new battery
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ULONG LastFullChargeCapacity; // Predicted capacity when fully charged
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ULONG BatteryTechnology; // 0:Primary (not rechargable), 1:Secondary (rechargable)
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ULONG DesignVoltage; // Nominal voltage of a new battery
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ULONG DesignCapacityOfWarning; // OEM-designed battery warning capacity
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ULONG DesignCapacityOfLow; // OEM-designed battery low capacity
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ULONG BatteryCapacityGran_1; // capacity granularity between low and warning
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ULONG BatteryCapacityGran_2; // capacity granularity between warning and full
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UCHAR ModelNumber[CM_MAX_STRING_LENGTH];
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UCHAR SerialNumber[CM_MAX_STRING_LENGTH];
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UCHAR BatteryType[CM_MAX_STRING_LENGTH];
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UCHAR OEMInformation[CM_MAX_STRING_LENGTH];
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} CM_BIF_BAT_INFO, *PCM_BIF_BAT_INFO;
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//
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// Definitions for the PowerUnit field of CM_BIF_BAT_INFO
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//
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#define CM_BIF_UNITS_WATTS 0 // All units are in mWh
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#define CM_BIF_UNITS_AMPS 1 // All units are in mAh
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//
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// This is the battery status data defined by the ACPI spec for a control method battery
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// It is returned by the _BST control method
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//
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typedef struct {
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ULONG BatteryState; // Charging/Discharging/Critical
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ULONG PresentRate; // Present draw rate in units defined by PowerUnit
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// Unsigned value, direction is determined by BatteryState
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ULONG RemainingCapacity; // Estimated remaining capacity, units defined by PowerUnit
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ULONG PresentVoltage; // Present voltage across the battery terminals
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} CM_BST_BAT_INFO, *PCM_BST_BAT_INFO;
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//
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// Bit definitions for the BatteryState field of CM_BST_BAT_INFO
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//
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#define CM_BST_STATE_DISCHARGING 0x00000001 // Battery is discharging
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#define CM_BST_STATE_CHARGING 0x00000002 // Battery is charging
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#define CM_BST_STATE_CRITICAL 0x00000004 // Battery is critical
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//
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// Cached battery info
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//
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typedef struct {
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ULONG Tag; // Unique tag for this battery,
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ULONG ModelNumLen; // Length of ModelNumber string in StringBuffer
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PUCHAR ModelNum; // Ptr to ModelNumber in StringBuffer
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ULONG SerialNumLen; // Length of SerialNumber string in StringBuffer
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PUCHAR SerialNum; // Ptr to SerialNumber in StringBuffer
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ULONG OEMInfoLen; // Length of OEMInformation string in StringBuffer
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PUCHAR OEMInfo; // Ptr to OEMInformation in StringBuffer
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CM_BST_BAT_INFO Status; // Last Status read from battery
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CM_BIF_BAT_INFO StaticData; // Last valid data
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ULONG StaticDataTag; // Tag when static data was last read
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BATTERY_STATUS ApiStatus; // Status info, class driver structure
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BATTERY_INFORMATION ApiInfo; // Battery info, class driver structure
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ULONG ApiGranularity_1;
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ULONG ApiGranularity_2;
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BOOLEAN BtpExists; // Remeber if _BTP method exists
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} STATIC_BAT_INFO, *PSTATIC_BAT_INFO;
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typedef struct {
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ULONG Granularity;
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ULONG Capacity;
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} BATTERY_REMAINING_SCALE, *PBATTERY_REMAINING_SCALE;
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typedef struct {
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ULONG Setting; // The alarm value
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BOOLEAN Supported; // Set to false when _BTP fails
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// don't bother calling _BTP again
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} BAT_ALARM_INFO, *PBAT_ALARM_INFO;
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#define CM_ALARM_INVALID 0xffffffff;
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//
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// Types for the different FDOs created by this driver.
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//
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#define AC_ADAPTER_TYPE 0x00
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#define CM_BATTERY_TYPE 0x01
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//
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// Pagable device extension for control method battery
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//
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typedef struct _CM_BATT {
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ULONG Type; // Battery or AC Adapter
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PDEVICE_OBJECT DeviceObject; // Battery device object
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PDEVICE_OBJECT Fdo; // Functional Device Object
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PDEVICE_OBJECT Pdo; // Physical Device Object
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PDEVICE_OBJECT LowerDeviceObject; // Detected at AddDevice time
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FAST_MUTEX OpenCloseMutex;
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ULONG OpenCount; // Count open file handles to device
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PIRP WaitWakeIrp; // Pointer to Wait Wake Irp
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POWER_STATE WakeSupportedState;
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WMILIB_CONTEXT WmiLibContext;
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BOOLEAN WakeEnabled;
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BOOLEAN WantToRemove; // Syncronize device removal
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LONG InUseCount;
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KEVENT ReadyToRemove;
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ULONG DeviceNumber;
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PUNICODE_STRING DeviceName;
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ACPI_INTERFACE_STANDARD AcpiInterfaces;
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BOOLEAN Sleeping;
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UCHAR ActionRequired;
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//
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// All fields before this point are common between _CM_BATT and _AC_ADAPTER
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//
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PVOID Class; // Battery Class handle
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BOOLEAN IsStarted; // if non zero, the device is started
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BOOLEAN ReCheckSta;
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LONG CacheState; // 0 = invalid
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// 1 = updating values
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// 2 = valid
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//
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// Battery
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//
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ULONG TagCount; // Tag for next battery
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STATIC_BAT_INFO Info;
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BAT_ALARM_INFO Alarm;
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ULONGLONG DischargeTime; // Time battery started discharging.
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} CM_BATT, *PCM_BATT;
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//
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// Pagable device extension for AC Adapter
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//
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typedef struct _AC_ADAPTER {
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ULONG Type; // Battery or AC Adapter
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PDEVICE_OBJECT DeviceObject; // Battery device object
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PDEVICE_OBJECT Fdo; // Functional Device Object
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PDEVICE_OBJECT Pdo; // Physical Device Object
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PDEVICE_OBJECT LowerDeviceObject; // Detected at AddDevice time
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FAST_MUTEX OpenCloseMutex;
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ULONG OpenCount; // Count open file handles to device
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PIRP WaitWakeIrp; // Pointer to Wait Wake Irp
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POWER_STATE WakeSupportedState;
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WMILIB_CONTEXT WmiLibContext;
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BOOLEAN WakeEnabled;
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BOOLEAN WantToRemove; // Syncronize device removal
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LONG InUseCount;
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KEVENT ReadyToRemove;
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ULONG DeviceNumber;
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PUNICODE_STRING DeviceName;
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ACPI_INTERFACE_STANDARD AcpiInterfaces;
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BOOLEAN Sleeping;
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UCHAR ActionRequired;
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} AC_ADAPTER, *PAC_ADAPTER;
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// Action required (AR) flags
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#define CMBATT_AR_NO_ACTION 0
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#define CMBATT_AR_NOTIFY 1
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#define CMBATT_AR_INVALIDATE_CACHE 2
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#define CMBATT_AR_INVALIDATE_TAG 4
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//
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// Use the IoSkipCurrentIrpStackLocation routine because the we
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// don't need to change arguments, or a completion routine
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//
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#define CmBattCallLowerDriver(Status, DeviceObject, Irp) { \
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IoSkipCurrentIrpStackLocation(Irp); \
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Status = IoCallDriver(DeviceObject,Irp); \
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}
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#define GetTid() PsGetCurrentThread()
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//
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// Prototypes
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//
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VOID
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CmBattAlarm (
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IN PVOID Context,
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IN UCHAR Address,
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IN USHORT Data
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);
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NTSTATUS
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CmBattVerifyStaticInfo (
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IN PCM_BATT CmBatt,
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IN ULONG BatteryTag
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);
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NTSTATUS
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CmBattPnpDispatch(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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CmBattPowerDispatch(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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CmBattSystemControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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CmBattForwardRequest(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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CmBattAddDevice(
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IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT Pdo
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);
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NTSTATUS
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CmBattQueryTag (
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IN PVOID Context,
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OUT PULONG BatteryTag
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);
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NTSTATUS
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CmBattSetStatusNotify (
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IN PVOID Context,
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IN ULONG BatteryTag,
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IN PBATTERY_NOTIFY BatteryNotify
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);
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NTSTATUS
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CmBattDisableStatusNotify (
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IN PVOID Context
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);
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NTSTATUS
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CmBattQueryStatus (
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IN PVOID Context,
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IN ULONG BatteryTag,
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OUT PBATTERY_STATUS BatteryStatus
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);
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NTSTATUS
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CmBattGetBifData(
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IN PCM_BATT CmBatt,
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OUT PCM_BIF_BAT_INFO BifBuf
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);
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NTSTATUS
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CmBattGetUniqueId(
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IN PDEVICE_OBJECT Pdo,
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OUT PULONG UniqueId
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);
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NTSTATUS
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CmBattGetStaData(
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IN PDEVICE_OBJECT Pdo,
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OUT PULONG ReturnStatus
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);
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NTSTATUS
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CmBattGetPsrData(
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IN PDEVICE_OBJECT Pdo,
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OUT PULONG ReturnStatus
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);
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NTSTATUS
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CmBattIoCompletion(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN PKEVENT pdoIoCompletedEvent
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);
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NTSTATUS
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CmBattSetTripPpoint(
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IN PCM_BATT CmBatt,
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IN ULONG TripPoint
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);
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NTSTATUS
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CmBattGetBstData(
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IN PCM_BATT CmBatt,
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OUT PCM_BST_BAT_INFO BstBuf
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);
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NTSTATUS
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GetDwordElement (
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IN PACPI_METHOD_ARGUMENT Argument,
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OUT PULONG PDword
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);
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NTSTATUS
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GetStringElement (
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IN PACPI_METHOD_ARGUMENT Argument,
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OUT PUCHAR PBuffer
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);
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VOID
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CmBattPowerCallBack(
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IN PVOID CallBackContext,
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IN PVOID Argument1,
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IN PVOID Argument2
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);
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VOID
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CmBattWakeDpc (
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IN PKDPC Dpc,
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IN PVOID DefferedContext,
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IN PVOID SystemArgument1,
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IN PVOID SystemArgument2
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);
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VOID
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CmBattNotifyHandler (
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IN PVOID Context,
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IN ULONG NotifyValue
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);
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NTSTATUS
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CmBattQueryInformation (
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IN PVOID Context,
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IN ULONG BatteryTag,
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IN BATTERY_QUERY_INFORMATION_LEVEL Level,
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IN LONG AtRate OPTIONAL,
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OUT PVOID Buffer,
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IN ULONG BufferLength,
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OUT PULONG ReturnedLength
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);
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NTSTATUS
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CmBattSendDownStreamIrp(
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IN PDEVICE_OBJECT Pdo,
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IN ULONG Ioctl,
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IN PVOID InputBuffer,
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IN ULONG InputSize,
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IN PVOID OutputBuffer,
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IN ULONG OutputSize
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);
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NTSTATUS
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CmBattWaitWakeLoop(
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IN PDEVICE_OBJECT DeviceObject,
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IN UCHAR MinorFunction,
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IN POWER_STATE PowerState,
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IN PVOID Context,
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IN PIO_STATUS_BLOCK IoStatus
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);
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NTSTATUS
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CmBattWmiRegistration(
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PCM_BATT CmBatt
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);
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NTSTATUS
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CmBattWmiDeRegistration(
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PCM_BATT CmBatt
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);
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#ifndef _WIN32_WINNT
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VOID
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CmBattNotifyVPOWERDOfPowerChange (
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IN ULONG PowerSourceChange
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);
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#endif
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